At what point was it decided to resurrect Admiral Janeway? Did the online petitions have any impact in the decision at all?

I'd think she HAS to answer no to this one, even if it did have an impact. Otherwise, she loses control of things, it's shown that you can influence her process, and it becomes a series written by committee. Plus, she said in the afterward that she wanted to make it clear that she WASN'T influenced by it....